Gerald T Stranford

US Patent:

7569977, Aug 4, 2009

Filed:

Jul 31, 2007

Appl. No.:

11/888033

Inventors:

Gerald Stranford - Albuquerque NM, US
Thomas A. Knecht - Dundee IL, US

Assignee:

CTS Corporation - Elkhart IN

International Classification:

H01L 41/047

US Classification:

310366, 310312, 310337, 310365

Abstract:

A piezoelectric element suitable for use as a sensor element in a hydrophone. In a preferred embodiment, the sensor element comprises a ceramic lead zirconate titanate substrate defining opposed ends and including at least first and second conductive strip electrodes on opposed top and bottom faces thereof. In accordance with the invention, at least one of the strip electrodes, and preferably at least the end of one of the strip electrodes disposed adjacent one of the opposed ends of the substrate, includes one or more spaced-apart laser cuts created during the manufacture of the sensor element for presetting the capacitance of the sensor element.

US Patent:

54683181, Nov 21, 1995

Filed:

May 15, 1990

Appl. No.:

7/523620

Inventors:

Roger Y. Leung - Schaumburg IL
Gerald T. Stranford - Palatine IL
Stephen T. Gonczy - Mt. Prospect IL

Assignee:

AlliedSignal Inc. - Morris Township, Morris County NJ

International Classification:

C03B 2900

US Classification:

156 89

Abstract:

An improved fiber reinforced glass composite includes a carbon-coated refractory fiber in a matrix of a black glass ceramic having the empirical formula SiCxOy where x ranges from about 0. 5 to about 2. 0, preferably 0. 9 to 1. 6 and y ranges from about 0. 5 to 3. 0, preferably 0. 7 to 1. 8. Preferably the black glass ceramic is derived from cyclosiloxane monomers containing a vinyl group attached to silicon and/or a hydride-silicon group. Graceful failure can be obtained after exposure of the composites to temperatures up to 1300. degree. C.

US Patent:

55123597, Apr 30, 1996

Filed:

Jan 12, 1990

Appl. No.:

7/464470

Inventors:

Roger Y. Leung - Schaumburg IL
Gerald T. Stranford - Palatine IL
Stephen T. Gonczy - Mt. Prospect IL

Assignee:

AlliedSignal Inc. - Morris Township, Morris County NJ

International Classification:

D04H 158
B32B 900

US Classification:

428288

Abstract:

An improved fiber reinforced glass composite includes a carbon-coated refractory fiber in a matrix of a black glass ceramic having the empirical formula SiCxOy where x ranges from about 0. 5 to about 2. 0, preferably 0. 9 to 1. 6 and y ranges from about 0. 5 to 3. 0, preferably 0. 7 to 1. 8. Preferably the black glass ceramic is derived from cyclosiloxane monomers containing a vinyl group attached to silicon and/or a hydride-silicon group.

US Patent:

47013168, Oct 20, 1987

Filed:

Aug 29, 1986

Appl. No.:

6/901672

Inventors:

George R. Lester - Park Ridge IL
Stephen T. Gonczy - Mt. Prospect IL
Lawrence B. Welsh - Evanston IL
Gerald T. Stranford - Palatine IL

Assignee:

Allied Corporation - Morristown NJ

International Classification:

C01B 21063
C01B 3306

US Classification:

423344

Abstract:

Silicon nitride powder may be prepared by subjecting a composite comprising at least a monolayer of a carbonaceous pyropolymer possessing recurring units containing at least carbon and hydrogen atoms on the surface of a silica support to the action of nitrogen-containing atmospheres at nitriding conditions to form silicon nitride.

US Patent:

50047094, Apr 2, 1991

Filed:

Mar 16, 1989

Appl. No.:

7/324132

Inventors:

Gerald T. Stranford - Palatine IL
Stephen T. Gonczy - Mt. Prospect IL
Roy T. Mitsche - Wauconda IL

Assignee:

Allied-Signal Inc. - Morris Township, Morris County NJ

International Classification:

C04B 3556
C04B 3558

US Classification:

501 97

Abstract:

This invention relates to a ceramic article having a crystalline and continuous silicon nitride phase, iron and a rare earth oxide, the article having a surface area of at least 3. 5 m. sup. 2 /g, a thermal expansion coefficient smaller than 6. times. 10. sup. -6 m/m/. degree. C. measured in the range 20. degree. -800. degree. C. and a porosity of at least 30%. The ceramic article may also contain a discrete porous oxide phase such as alumina, aluminates, silica, spinel, titania, zirconia, zeolites and mixtures thereof. Further, the porous oxide may also contain a metal oxide such as barium oxide, nickel oxide, iron oxide, rare earth oxides and mixtures thereof. The ceramic article may be used as a catalyst support. Methods of manufacturing the ceramic article are also disclosed.

US Patent:

52580849, Nov 2, 1993

Filed:

Dec 20, 1990

Appl. No.:

7/638109

Inventors:

Rober Y. Leung - Schaumburg IL
Gerald T. Stranford - Palatine IL
Stephen T. Gonczy - Prospect IL

Assignee:

Allied-Signal Inc. - Morris Township, Morris County NJ

International Classification:

C03B 2900

US Classification:

156 89

Abstract:

An improved fiber reinforced glass composite includes a carbon-coated refractory fiber in a matrix of a black glass ceramic having the empirical formula SiCxOy where x ranges from about 0. 5 to about 2. 0, preferably 0. 9 to 1. 6 and y ranges from about 0. 5 to 3. 0, preferably 0. 7 to 1. 8. Preferably the black glass ceramic is derived from cyclosiloxane monomers containing a vinyl group attached to silicon and/or a hydride-silicon group.

US Patent:

49563297, Sep 11, 1990

Filed:

Nov 28, 1988

Appl. No.:

7/276610

Inventors:

Tai-Hsiang Chao - Mt. Prospect IL
Michael W. Schoonover - Arlington Heights IL
Gerald T. Stranford - Palatine IL

Assignee:

Allied-Signal Inc. - Morris Township, Morris County NJ

International Classification:

B01J 2100
B01J 3200

US Classification:

502251

Abstract:

This invention relates to a catalyst support structure, methods of preparing the support structure and a process for using the support structure. The catalyst support structure is composed of a substantially polycrystalline cordierite phase having a chemical composition by weight of 6-15% MgO, 33-40% Al. sub. 2 O. sub. 3 and 45-56% SiO. sub. 2 and characterized in that it has a surface area of at least 2. 7 m. sup. 2 /g and preferably 8 m. sup. 2 /g, a compressive strength of at least 31 MPa, a thermal expansion coefficient smaller than 5. 2. times. 10. sup. -6 m/m/. degree. C. and a porosity of at least 20%.

US Patent:

53546024, Oct 11, 1994

Filed:

Jan 21, 1993

Appl. No.:

8/007037

Inventors:

Gerald T. Stranford - Palatine IL
Roger Y. Leung - Schaumburg IL
Stephen T. Gonczy - Prospect IL

Assignee:

Allied-Signal Inc. - Morris Township, Morris County NJ

International Classification:

D03D 300
D04H 300
C04B 3502
C03C 300

US Classification:

428220

Abstract:

An improved fiber reinforced glass composite includes a boron nitride-coated refractory fiber in a matrix of a black glass ceramic having the empirical formula SiCxOy where x ranges from about 0. 9 to 1. 6 and y ranges from about 0. 7 to 1. 8. Preferably the black glass ceramic is derived from cyclosiloxane monomers containing a vinyl group attached to silicon and/or a hydride-silicon group. Graceful failure can be obtained after exposure of the composites to temperatures up to 600. degree. -700. degree. C. in air.